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Student Support Forum: 'Differentiating Interpolating Functions' topicStudent Support Forum > General > Archives > "Differentiating Interpolating Functions"

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Nicolette
04/17/08 04:15am

I have a list of data points: list={{x,t},f(x,t)}, which I use to create an Interpolating function of two variables, x and t. I.e., I have: Interpolation[list], which returns a multidimensional interpolating function. I now need to differentiate this interpolating function in terms of x. However, you cannot use "'" (prime), (as you do with an interpolating function of one varariable), as the function does not know which variable to differentiate in terms of. Thus it does not execute the command. I have tried D[ ,x], to differentiate but it does not work
either. Is there any other way to do this?

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Subject (listing for 'Differentiating Interpolating Functions')
Author Date Posted
Differentiating Interpolating Functions Nicolette 04/17/08 04:15am
Re: Differentiating Interpolating Functions yehuda ben-s... 04/20/08 3:22pm
Re: Re: Differentiating Interpolating Functions Nicolette 04/22/08 07:32am
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